/*
 * 
 * Copyright 2011 visual-analysis-of-cancer.
 * This file is part of visual-analysis-of-cancer.
 * 
 * visual-analysis-of-cancer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * visual-analysis-of-cancer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with kOSMik.  If not, see <http://www.gnu.org/licenses/>.
 *  
 * visual-analysis-of-cancer:
 * An tool to analye the WHO and GLOBOCAN cancer data.
 * http://code.google.com/p/visual-analysis-of-cancer/
 * 
 * 
 * 
 * Authors: Erik Sniegula, Johannes Dahlke
 * 
 * Module:  Programming in Processing for Visual Analytics
 * Group:   20
 * 
 * Created: Aug. 2011
 * Version: 1.0
 *
 */
 




package de.fuberlin.processing.who.cancer.interaction;

import java.util.Collection;
import java.util.Observable;
import java.util.Observer;
import java.util.Vector;

import de.fuberlin.processing.who.cancer.data.DBException;
import de.fuberlin.processing.who.cancer.data.DatabaseConnector;
import de.fuberlin.processing.who.cancer.data.DatabaseConnectorImpl;
import de.fuberlin.processing.who.cancer.utils.Test;





public class CausesBroadcaster extends Observable implements CausesModifier {


  private static CausesBroadcaster causesBroadcaster = null;
	
	private CancerCauses selectedCancerCause = CancerCauses.AIR_POLLUTION;

	
	private CausesBroadcaster() {
		super();
		
	}
	
	
	public static CausesBroadcaster get() {
		if ( Test.isUnassigned( causesBroadcaster)) {
				causesBroadcaster = new CausesBroadcaster();
		}
		return causesBroadcaster;
	}
	

	private void communicateChanges() {
		super.setChanged();
		super.notifyObservers( this.selectedCancerCause);
	}


	public void setAirPollutionAsCause() {
		this.selectedCancerCause = CancerCauses.AIR_POLLUTION;
		communicateChanges();
	};


	public void setUVRadiationAsCause() {
		this.selectedCancerCause = CancerCauses.UV_RADIATION;
		communicateChanges();
	};


	public void setAgeAsCause() {
		this.selectedCancerCause = CancerCauses.AGE;
		communicateChanges();
	};


	public void setSexAsCause() {
		this.selectedCancerCause = CancerCauses.SEX;
		communicateChanges();
	};

}
